SECTION 2

INSTALLATION

Electrical Junction

Cover Plate

Figure 2-12. Junction Connection Box

V. GAS SUPPLY FOR GAS HEATED OVENS

WARNING

During gas line pressure testing, observe the following precautions:

1.The oven and its individual shutoff valve MUST be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.45kPa).

2.The oven MUST be isolated from the gas supply piping system, by closing its individual shutoff valve, during any pressure testing of that system at test pressures equal to, or less than, 1/2 psig (3.45kPa).

3.If incoming gas line pressure exceeds

14″w.c. (35mbar), a separate regulator MUST be installed in the line on the inlet side of the safety valve for the oven.

CAUTION

To prevent damaging the control valve regulator of the oven during initial turn-on of gas, the individual shutoff valve MUST be opened very slowly. After initial turn-on of gas, the individual shutoff valve should remain open except during gas line pressure testing (refer to the preceding WARNING) and during necessary servicing and maintenance procedures.

Check the oven data plate (Figure 2-11) before making any gas supply line connections. The type of gas (natural or propane) being supplied to the oven must agree with data on the oven data plate.

Certain safety code requirements exist for the installation of gas ovens; refer to the beginning of Section 2 for a list of the installation standards. In addition, because a PS540-Series oven is equipped with casters for accessi- bility during servicing, the gas line connection shall be made with a connector that complies with the Standard for Connectors for Movable Gas Appliances, ANSI Z21.69 (in U.S.A.), or, if applicable, Connectors for Movable Gas Appliances, CAN/CGA-6.16 (in Canada), as well as a quick-disconnect device that complies with the Standard for Quick-Disconnect Devices for Use With Gas Fuel, ANSI Z21.41 (in U.S.A.), or, if applicable, Quick-Discon- nect Devices for Use With Gas Fuel, CAN6.9 (in Canada).

One gas line connection method is shown in Figure 2-13; however, the preceding requirements must be satisfied. The 90-degree elbow and the union shown in Figure 2-13 are not furnished; however, the flexible gas line is part of the installation kit.

On an oven equipped with casters, a cable restraint assembly must be installed to limit the movement of the appliance, without depending on the connector and quick- disconnect device or its associated gas line installation. The location where the Cable Restraint Assembly is to be attached to the oven is illustrated in Figure 2-8.

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Middleby Marshall PS540G installation manual GAS Supply for GAS Heated Ovens, Junction Connection Box
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PS540G specifications

The Middleby Marshall PS540G is a cutting-edge conveyor oven designed to meet the diverse cooking needs of commercial kitchens and food service operations. Known for its efficiency and reliability, the PS540G combines advanced technology with innovative design to deliver consistent cooking results while optimizing energy use.

One of the standout features of the PS540G is its high-efficiency impingement cooking system. This technology utilizes powerful jets of hot air that quickly and evenly circulate around the food, ensuring thorough cooking while significantly reducing cooking times. This results in faster service and improved throughput, making it an excellent choice for busy restaurants, cafes, and catering operations.

The oven is equipped with a unique dual-fuel option, allowing operators to choose between natural gas or propane. This flexibility helps businesses adapt to their specific requirements and preferences, providing both cost and energy-saving benefits. Additionally, the PS540G is designed with a fully insulated structure, minimizing heat loss and further enhancing energy efficiency.

Another key characteristic of the Middleby Marshall PS540G is its user-friendly control interface. The digital controls offer precise temperature settings and adjustable conveyor speeds, allowing chefs to customize the cooking process for various food items. This versatility ensures optimal results, whether baking pizzas, roasting vegetables, or toasting sandwiches.

The spacious cooking chamber of the PS540G is designed with a wide conveyor belt that accommodates large batches of food, making it particularly suitable for high-volume establishments. The oven's compact footprint allows it to fit into tight kitchen spaces without sacrificing cooking capacity.

Safety is also a priority in the design of the PS540G. The oven features automatic shut-off mechanisms and cool-to-the-touch exterior surfaces, allowing for safer operations. Additionally, the durable construction with stainless steel components ensures longevity and ease of maintenance.

In conclusion, the Middleby Marshall PS540G is a state-of-the-art conveyor oven that offers outstanding performance for commercial kitchens. With its advanced impingement cooking technology, flexible dual-fuel options, user-friendly controls, and robust safety features, the PS540G stands out as an essential tool for any food service operation looking to enhance efficiency and food quality.
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